part of stocksapp; class Stocklist extends FixedHeightScrollable { List stocks; Stocklist({ Object key, this.stocks }) : super(key: key, itemHeight: 80.0, height: 800.0, minOffset: 0.0); List renderItems(int start, int count) { var items = []; for (var i = 0; i < count; i++) { items.add(new StockRow(stock: stocks[start + i])); } return items; } }